High-pressure cleaner with air-cooled motor
AssigneeK.E.W. Industri A/S
InventorKarsten Krarup
Life of this patent
Estimating the term…
Abstract
A high-pressure cleaner includes a pump for pumping cleaning liquid, the drive mechanism of which pump is driven by an air-cooled motor. The cleaner also includes an air cooler adapted to be cooled by the cleaning liquid on its way to the pump and an air-circulating arrangement for circulating air between the motor and the air cooler in an enclosure containing the motor and the air cooler. The part of the air cooler through which the cleaning liquid flows is in intimate thermal contact with or integral with a housing containing the drive mechanism of the pump. With this arrangement, the cooling capacity of the cleaning liquid flowing towards the pump is also used for cooling the mechanism used for moving the pump's pistons, e.g., a swash-plate mechanism or the like.
Claims8
A high-pressure cleaner comprising:
- a) a pump for pumping cleaning liquid, the pump including a drive mechanism,
- b) an air-cooled motor for driving the drive mechanism of the pump,
- c) an air cooler adapted to be cooled by said cleaning liquid when the cleaning liquid flows through the air cooler to said pump, and
- d) air-circulating means for circulating air between said motor and said air cooler in an enclosure containing the motor and the air cooler, the improvement comprising a liquid-flow part of said air cooler through which said cleaning liquid flows in intimate thermal contact with or integral with a separate housing within said enclosure, containing the drive mechanism of said pump.
Dependencies are inferred from the claim text.